JPH06349464A - Battery container - Google Patents

Abstract

PURPOSE:To maintain the airtightness of a container and drain the water in a cover body by providing an inner cover having a circular groove inserted with an O-ring to be brought into slide contact with the inner face of an opening section and a set screw screwed to the inner cover to be inserted into the drain hole of the cover body. CONSTITUTION:The inner screw 11 of a cover body 9 is screwed to an outer screw 10 formed on the outer face of an opening section 8 at the lower end of a container main body 7 to close the opening section 8, and a drain hole 30 is formed through the center section of the cover body 9. A set screw 32 having a head section is inserted into the drain hole 30, and its tip is screwed to an inner cover 27. The inner cover 27 is brought into pressure contact with the inner face of the opening section 8 by an O-ring 29 inserted into a circular groove 28 formed on the outer face, and the interior of the container 7 is kept airtight. The pressure contact force of the O-ring 29 is not fluctuated even when the cover body 9 is loosened by vibration or the fastening force is changed, and water can be drained from the drain hole 30 even when water infiltrates into the cover body 9.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a battery container attached to the upper part of a telephone pole and used in a communication device for transmitting accident information in the event of a power failure.

[0002]

2. Description of the Related Art Conventionally, a battery container used in the communication device has a structure shown in FIGS. In these figures, 1 is a housing of a communication device attached to the upper part of a telephone pole, 2 is a cover plate that hermetically closes a lower opening 3 of the housing 1, 4 is a through hole provided through the cover plate 5, Is a container main body which is airtightly mounted on the lid plate 2 inside the through hole 4, 6 is a container by-body which is airtightly mounted on the lid plate 2 outside the through hole 4, and 7 is a container main body 5
The container body is composed of the container sub body 6.

Reference numeral 8 is an opening at the lower end of the container body 7, 9 is a lid that closes the opening 8, 10 is an external screw formed on the outer surface of the opening 8, and 11 is an inner surface of the lid 9. It is an inner screw and is screwed onto the outer screw 10, and the lid 9 closes the opening 8.

Reference numeral 12 is an annular groove formed in the peripheral portion of the bottom surface of the lid 9, and 13 is an O-ring fitted in the annular groove 12,
When the lid 9 closes the opening 8, the O-ring 13 is pressed against the end surface of the opening 8 to maintain the airtightness in the container body 7, thereby forming the battery container 14. Then, the battery housed in the battery container 14 is regularly replaced by the attachment / detachment of the lid 9.

[0005]

DISCLOSURE OF THE INVENTION Conventional battery container 1
In the case of No. 4, the O-ring 13 is compressed and the airtightness is maintained by tightening the lid 9 to the container sub-body 6 or the container body 7, but the outer screw 10 and the inner screw 11 are screwed together due to vibration or the like. When loosened, the O-ring 1 was pressed against the end face of the opening 8
3, the proper compression rate cannot be obtained, the airtightness of the container 14 cannot be obtained, and the compression rate of the O-ring 13 greatly changes depending on how the lid 9 is tightened, and it is difficult to obtain the proper compression rate. However, when water enters the lid 9 due to improper tightening of the lid 9 or the like, there is a problem that water accumulates.

In view of the above points, the present invention is a battery container capable of sufficiently maintaining airtightness and draining invaded water even when the lid is loose or the lid is not tightened properly. The purpose is to provide.

[0007]

In order to solve the above-mentioned problems, a battery container of the present invention comprises a container main body in the vertical direction in which a battery is housed, and an outer surface formed on an outer surface of an opening at a lower end of the main body. A screw, a lid body in which an inner thread formed on the inner surface is screwed into the outer thread to close the opening, a drain hole formed vertically through the center of the lid body, and an outer surface An inner lid slidingly contacting the inner surface of the opening, an annular groove formed on the outer surface of the inner lid, an O-ring fitted in the annular groove and pressed against the inner surface of the opening, and the drain hole. And a set screw having a front end screwed into the inner lid and a lower end having a head portion.

[0008]

The battery container of the present invention constructed as described above,
An inner lid whose outer surface is in sliding contact with the inner surface of the opening is provided, and an O-ring fitted in an annular groove on the outer surface of the inner lid is pressed against the inner surface of the opening and is inserted into the water drain hole of the lid. Since the tip of the is screwed to the inner lid, the lid may become loose due to vibration,
Or, even if there is a change in the method of tightening the lid, there is no change in the pressure contact force against the inner surface of the opening of the O-ring, that is, the compression rate,
A proper compression rate can always be obtained, sufficient airtightness can be obtained, and even if water enters the lid body, water can be drained from the drain hole, and water does not collect in the lid body.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment will be described with reference to FIGS. In these drawings, the same reference numerals as those in FIGS. 4 to 6 denote the same or corresponding ones. Reference numeral 15 is a stud planted on the inner surface of the cover plate 2, 16 is an annular groove formed on the outer surface of the flange 17 of the container main body 5, 18 is an O-ring fitted in the annular groove 16, and 19 is transparently provided on the flange 17. The reference numeral 20 denotes a nut, and the flange 17 is pressed against the inner surface of the cover plate 2 through the O-ring 18, and the through hole 19 is provided.
The stud 15 is inserted into the stud 15, the nut 20 is screwed into the stud 15 and tightened, and the container main body 5 is airtightly attached to the inner surface of the lid plate 2.

Reference numeral 21 is a stud planted on the outer surface of the cover plate 2, 22 is an annular groove formed on the outer surface of the flange 23 of the container sub-member 6, 24 is an O-ring fitted in the annular groove 22, 2
Reference numeral 5 is a through hole provided in the flange 23, and 26 is a nut. The flange 23 is pressed against the outer surface of the lid plate 2 through the O-ring 24, and the stud 21 is inserted into the through hole 25 to fix the nut 26. The container sub-member 6 is airtightly attached to the outer surface of the lid plate 2 by screwing it onto the stud 21 and tightening it.
Are formed.

27 is an inner lid whose outer surface is in sliding contact with the inner surface of the opening 8, 28 is an annular groove formed on the outer surface of the inner lid 27, 29 is fitted in the annular groove 28, and is pressed against the inner surface of the opening 8. It is an O-ring.

Reference numeral 30 is a drain hole formed vertically through the central portion of the lid 9, 31 is a metal pad embedded in the lower surface of the inner lid 27, and 32 is a set screw having a head 33 at the lower end. There, the inner lid 27 is attached to the lid body 9 by being inserted into the water draining hole 30 and the tip of which is screwed into the filling metal 31.

Then, by inserting the inner lid 27 of the lid 9 into the opening 8 and tightening the inner screw 10 of the lid 9 to the outer screw 11 of the opening 8, the O-ring 29 of the inner lid 27 is opened. The O-ring 29 is pressed against the inner surface of 8 to be compressed at a predetermined compression ratio, the O-ring 13 on the bottom surface of the lid 9 is also pressed against the end surface of the opening 8, and airtightness is maintained by the two O-rings 29 and 13. It

Even when the lid 9 is loosened due to vibration or the like as shown in FIG. 3, the compression rate of the O-ring 29 of the inner lid 27 does not change, and the O-ring 29 maintains a sufficient airtightness. Further, even if the method of tightening the lid 9 varies, the compression rate of the O-ring 29 does not change as described above, and there is no problem in maintaining the airtightness.

Further, when water enters the lid body 9, as shown in FIG. 3, the water is discharged from the drain hole 30 through the bottom surface of the lid body 9 and the water is accumulated in the lid body 9. There is no. The O-ring 13 on the bottom surface of the lid 9 can be omitted.

[0016]

Since the present invention is configured as described above, it has the following effects. In the battery container of the present invention, an inner lid 27 whose outer surface is in sliding contact with the inner surface of the opening 8 is provided inside the lid 9, and an annular groove 28 on the outer surface of the inner lid 27 is provided.
Since the O-ring 29 fitted in the inner surface of the O-ring 29 is pressed against the inner surface of the opening 8, even if the lid 9 is loosened due to vibrations or the tightening of the lid 9 is changed, the opening of the O-ring 29 is changed. There is no change in the pressure contact force of 8 on the inner surface, that is, the compression rate, and an appropriate compression rate can always be maintained, and sufficient airtightness can be obtained. In addition, the water draining hole 30 that also serves as an insertion hole for the set screw 32 that attaches the inner lid 27 to the lid body 9 allows the water that has entered the lid body 9 to be drained, so that the water accumulates in the lid body 9. Can be prevented.

[Brief description of drawings]

FIG. 1 is a cutaway front view of an embodiment of the present invention.

FIG. 2 is a partially cutaway front view of FIG.

FIG. 3 is an explanatory view of the operation of FIG.

FIG. 4 is a cut front view of a conventional example.

FIG. 5 is an explanatory view of the operation of FIG.

FIG. 6 is an operation explanatory view of another state of FIG.

[Explanation of symbols]

 7 Container Body 8 Opening 9 Lid 10 Outer Screw 11 Inner Screw 27 Inner Lid 28 Annular Groove 29 O-ring 30 Drainage Hole 32 Set Screw 33 Head

Claims (1)

[Claims] 1. An up-down container main body for accommodating a battery, an outer screw formed on an outer surface of an opening at a lower end of the main body, and an inner screw formed on an inner surface is screwed to the outer screw, A lid that closes the opening, a water drain hole vertically formed in the center of the lid, an inner lid whose outer surface is in sliding contact with the inner surface of the opening, and an outer surface of the inner lid. And an O-ring fitted into the annular groove and press-contacted to the inner surface of the opening, the water-draining hole is inserted into the inner lid, the front end is screwed into the inner lid, and the lower end has a head portion. A battery container with a set screw.